Slide cartridge

After the slides have been removed from their packing they can be placed in the analyzer. Two storage containers are available (Fig. 23) each accommodating 30 slide cartridges. Cooling provides for prolonged storage life of the slides (approx. 1-2 weeks in the analyzer). Since the slide containers are fitted... 

Seal any spaces between the mine cover and tube with an aerosol sealant to keep moisture out. Do the same to all corners and cracks. lOl To arm Che mine, carefully slide the plunger Into Che tube so that the nail Is about 1/8" from the cartridge primer. 

The Ektachem 700 analyzer has been constructed in such a manner that mechanical parts can be monitored by computer. This results in easy operation, maintenance and problem-free servidng. Colorimetric, potentiometric and kinetic measurements can be performed. All the steps required for the reaction take place in the slides. These enable a quantitative determination of constituents of serum or plasma samples and some constituents of urine or cerebrospinal fluid. The slides are stored in cartridges (Fig. 22) that are sealed in aluminium foil. Each slide can be used for only one assay and is ejected directly after the measurement. 

The ejector fits into the hole behind the magsizine port. It should be silver-brazed in place Fixing the top of the ejector may be required to get a proper fit. The bolt must be able to just slide freely over the top of the ejector. Test with an empty cartridge case. When the action is worked rapidly, the case should be thrown clear of the action. 

In Requabattery the paper cartridges ate driven into all the barrels simultaneously by a sliding breech-block traversing at the rear of the whole platoon, and operated by a lever. Priming leads to each of the cartridges, and the charges are fired by a cap. 

After the discharge the brinel of the gun is tilted down, and the extractor starts the rifle barrel out of the shot gun bttmd this operation moves the slide i> slightly, and starts the cartridge shell. Should this prove insufficient the rifle barrel is draw n out far enough to admit of raising the lever , which operation moves the slide x> and ejects the shell. 

The direct-printing process does not require any sophisticated instrumentation. Basically, two pieces of equipment are required as fundamental tools a computer equipped with graphic software (e.g., Corel Draw, AutoCad, Macromedia FreeHand, or Microsoft Power Point) and a laser printer (although different brands provide different results as will be discussed later). Accessories such as an office laminator, a heating press (T-shirt transfer machine), and a paper driller represent the low-cost tools we have used. Finally, polyester films (transparency films or overhead projector films), wax paper sheets, a commercially available toner cartridge, microscope slides (glass) and CDs are the consumables, since they are used to produce microchips, microelectrodes, and integrated systems at very low cost. 

Novolizer (Asta Medica, Germany) is a reusable device. The disposable reservoir cartridges contain 200 doses of drug lactose mixture. When actuated, a slide moves at the bottom of the cartridge and a new dose is gravimetricaUy metered to the air channel. 

Easy exchange of disposable cartridge Flexibility of substrate formats (disk, slide, etc.)... 

A sliding-plate screen changer (Fig. 5.15a ) has two breaker plates mounted on a support plate a similar screen changer uses cartridge filters in place of the breaker plates. The breaker plates are manually or hydraulically switched when the pressure drop across the breaker plate exceeds a preset value. Then the dirty breaker plate and screens are... 

Mechanical joints for assembling microfluidic components and systems often involve insertion of one part into another. The afore-mentioned cartridges are a simple example, and structures must be included on both the cartridge and inside the instrument to allow smooth insertion. Such structures can include micro-rails to aid such sliding assembly on-chip. Care must be taken in choosing materials for properties such as friction and wear. Friction is defined as the force of motion or tendency toward such of two surfaces in contact, defined by the equation ... 

Since commercially available monolithic supports for environmental catalysts are not suitable for this class of applications, as explained above, in the early studies homemade high conductivity structured catalysts were prepared by assembling washcoated slabs of aluminium or stainless steel to form plate-type catalytic cartridges, which were also equipped with thermowells for sliding thermocouples in order to monitor the temperature distributions. The washcoat consisted of Pd (3%w/w) on y-Al203, and the catalysts were tested in the oxidation of CO, selected as a model exothermic reaction. 

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